Maak de erbijsom tot 20
Erbijsommen
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1.
7 + 12 =
|
2.
8 + 3 =
|
3.
18 + 0 =
|
|
4.
20 + 0 =
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5.
12 + 2 =
|
6.
8 + 12 =
|
|
7.
20 + 0 =
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8.
19 + 1 =
|
9.
10 + 10 =
|
|
10.
7 + 4 =
|
11.
11 + 0 =
|
12.
12 + 5 =
|
|
13.
18 + 0 =
|
14.
5 + 15 =
|
15.
17 + 0 =
|
|
16.
1 + 5 =
|
17.
8 + 6 =
|
18.
12 + 4 =
|
|
19.
15 + 2 =
|
20.
5 + 0 =
|
21.
20 + 0 =
|
|
22.
11 + 7 =
|
23.
9 + 8 =
|
24.
11 + 3 =
|
|
25.
15 + 5 =
|
26.
4 + 8 =
|
27.
3 + 14 =
|
|
28.
9 + 3 =
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29.
1 + 1 =
|
30.
19 + 0 =
|
|
31.
13 + 0 =
|
32.
20 + 0 =
|
33.
10 + 5 =
|